Electronic gaming device simulating the game of blackjack

ABSTRACT

A disk-operated electronic gaming device for playing a simulated game of blackjack is disclosed. The device includes operating controls for a player to control his play of the game; a display panel to show the progress of the game and its result; diskhandling equipment for receiving metallic disks and returning an appropriate number of disks to the player based on the results of the play; a solid state, fixed logic, digital computer to automatically determine the play of the game and to compute the results of this play; and a power supply to provide power necessary for operation of the computer, the display panel and the disk-handling equipment. The apparatus is housed in a compact, attractive, utilitarian cabinet.

United States Patent 1. a 1111 3,796,433

Frale'y et a1. 1 45 Mar, 12, I974 [5 ELECTRONIC GAMING DEVICE 1,178,3021 1970 Great Brilaini. 273/138 A M L I G THE E OF BLACKJACK 1,082,5579/1968 Great Britain 273/138 A [75] Inventors g; f' i ig f fiffggi wgb IPrimary ExaminerAnton O. Oechsle Nev 'f A Be A AssistantExaminer--Arnold -W. Kramer i Attorney, Agent, or Firm-Dean Sandford[73] Asslgneez gimp-Search, Inc., Buena Park, ABSTRACT V i I Adisk-operated electronic gaming device for playing [22] Flled' 1971 asimulated game of blackjack is disclosed. The device [21] Appl. No.:152,533 includes operating controls for a player to control his play ofthe game; a display panel to show the progress 1 of the game and itsresult disk-handling equipment for CCll I receiving metallic disksandretuming an appropriate [58 Fn .ld "273/138 A number of disks to theplayer based on the results of Ie o earc .T the play; a Solid State,fixed logic digital p g to References Cited automatically determine theplay of the game' and to compute the results of this play; and a powersupply to UNITEDSTATES PATENTS provide power necessary for operation ofthe com- 3,533,629 10/1970 Raven 273/138 A puter; the display panel andthe disk-handling equip- 3,653,026 3/1972 Hurley 273/138 A X ment Theapparatus is housed in a compact attract- FOREIGN PATENTS ORAPPLICATIONS We, utllltrian cabmet- 1,082,557 9/1967 Great Britain].273/138 A 14 Claims, 8 Drawing Figures 1,107,552 3/1968 Great Britain273/138 A 70\ A xii- LR I 1 3-919 J i 1 m2 3$9vvvev9vv 7 8 910 J I l22ooo'o9 a-2129 911111 i a i 1 a a 111.1 I 11' mimic? +4-!4-++4-|24- 2 aa a 72-- 2111]] [MINER SK We: a 4 s I 7 l 0710:9111 JG? 'V'V'VVVIV 9'aratosraossoo PUSH a '2 4/2 8 4 5 0 1 Q Q 9 mummwa g a 8 9 J x l IALIITllBAI-L lll'lll'l'li i fi a 4- e 4- a 4- &l-s a a -------.;.t

PAIENTED m 1 2 m4 SHEEI 1 0F 5 INVENTORS 14644757? 6. FRALE) (#42455 ,4.5544 BY 14/1455 7: Hf/VOR/X 9 I M PATENTED AR 12 1974 SHEET 2 0F 5 y miT E mm m Y v T R 2 i MA 4 A cmm Y B PATENTEDm 12 1974 saw u or 5ELECTRONIC GAMING DEVICE SIMULATING THE GAME OF BLACKJACK This inventionrelates to amusement devices,- and more particularly to a device forplaying a simulated game of blackjack or twenty-one. v

Blackjack, also sometimes known as twenty-one, is a card game in whichone or more players play separately against dealer which can be a housedealer, i.e., a dealer employed by a gaming house to run the game. Astandard deck of 52 cards is used. The cards have no player to playagainst the machine. These games may rank, but have numerical value asfollows: any ace counts one or 1 l at the option of the holder, any facecard or counts 10, and any other card counts its 'index number. Theobject of the game is for each player to acquire cards whose numericalvalues total 21 oras close to 21 as possible without exceedi riggldealer, has the right to draw additional cards one at a time..lf.aplayers first two cards count exactly 21, that is they'are a face cardor 10 and an ace, he has a natural or blackjack and wins the amount ofhis bet immediately, unless the dealer also has a blackjack. The dealermay not look at his face-down or hole card until his turn to play unlesshis face-up card is an ace, face card or 10.

If the dealer does not have a blackjack, and when all bets onblackjacks' have been settled, each player in turn, beginning with theplayer on the dealers left,may request additional cards, i.e., be hit bysaying to the dealer hit me, whereupon the dealer gives him one cardface up. There is no limit to the number of cards a player may so draw,except that he may not draw a card after his count equals or passes 21.The player may continue to receive cards, one at a time, ufiil hechooses .to stand, which means that he has a count of 21 or less anddoes not desire any more cards; or until he busts, which means that hehas a count or more than 21. In the latter case, he pays the amount ofhis bet to the dealer immediately. The players play in this manner, oneat a time, until all playersjfini sh play.

When all other players have finished play, dealer turns up hisface-downcard. A dealer must stand if his count is 17 or more, and he must hithimselfif and so long as his count is 16 or less. When the dealers handtotals 17 or more, or if he has busted, he then settles the f hqdsa s tassss 2.l. .hs.iaayitb.

amount of any bet not previously settled. If the dealer stands at atotal of 21 or less, he settles with each player who has stood by payingany higher count and collecting from any lower count. The dealer is at-a standoff with a player having the same count, which is called a.push. The handling of pushes or ties varies. In some games pushes arecollected by the dealer, and in some cases pushes are consideredstand-offs. Onev popular mode of play is for blackjacks by the dealerand any one or more players to be considered a standoff, and for thedealer to take all other pushes.

In another variation of the game sometimes played, after a player hasreceived his first two cards, but prior to receiving any additionalcards, the player is allowed be purely games of chance, such as typifiedby the socalled slot machines, or they may simulate some well knowngameof chance or skill such as those played with cards. The card game ofblackjack has long been a favorite with gamesters, but efforts toproduce a mechanical device to simulate this game have not beensuccessful because of the mechanicalc'omplexity of the device and theinordinate size of such machines. Thus, a demand. exists for a reliable,compact, device which simulates playof the card game known as blackjackor twenty-one.

Accordingly, a principal object of the invention is to provide apparatusby means of which a person may play a simulated game of blackjack.

Another object of the invention :is to provide a device by means ofwhich a player can utilizehis skill and luck against a simulated dealerin playinga game of blackjack.

Still another object of the invention is to provide a player-controlleddevice by means of which a person can play a simulated game of blackjackagainst the device acting as the dealer.

Yet another object of the invention is to provide a device by means ofwhich a person can utilize his skill and luck in playing a game againsta simulated dealer substantially in accordance with the rules of thecard game known as blackjackor twenty-one.

A further object of the invention is to provide a compact, reliable,player-controlled, self-contained device by means of which a person mayplay a of blackjack.

An even further object of the invention is to provide a machinethatsimulates for a player play-action similar to that in the card gameknown as blackjack.

FIG. 2 is a perspective view of the apparatus showing the interiorarrangement; i

Briefly, the gaming device of this invention is a electronic apparatusincluding control means for a player puter to automatically determinethe play of the game simulated game 1 I and to compute the results ofthis play; and a power supply to provide power necessary for operationof the computer, the display panel and the disk-handling equipment. Theapparatus is housed in a compact, attractive, utilitarian cabinet.

Referring now to FIGS. 1, 2 and 3, the apparatus is comprised of abox-like cabinet or housing adapted for placement upon a table or othersupporting'structure, not shown, that maintains the device at aconvenient playing height, Cabinet 10 has a door or front panel 12pivotly secured thereto by hinge 14. Door 12 can be'locked in a closedposition by means of latch-16 and lock 18. Cabinet 10 and door 12provide a closed dust and moisture proof container for the operatingcomponents of the device and prevent tampering by unauthorized persons.Cabinet 10 can be provided with a vertical interior partition 20 thatdivides the cabinet into separate compartments for housing theelectronic components and the disk-handling equipment. The computer andelectronic control circuitry is of the solid state, printed circuit typemounted on a number of plugboards 22, seven such plugboards beingemployed in the illustrated embodiment.

The disk-handling equipment is a coin receiver of conventional designand is located within cabinet 10. This equipment includes a standardcoin acceptor having acoin return button 32, a coin storage tube 34 toprovide a reservoir of disks available for pay-offs,

coin overflow tube 36 and coin return tube 38. The disk-handlingequipment can be adapted to handle metallic disks of any size A metallicdisk of proper denomination is inserted into the slot in coin acceptor30 and is tested for thickness, diameter, weight and metallurgy. If thediskis found unacceptable, or if the device is not in a proper mode ofplay to accept disks, the disk is rejected through coin return tube 38and coin return chute 40 into coin return tray 42 on the front of door12. The discharge end of coin return chute 40 mates with the aperture 44through which the disks pass into coin return tray 42. A 'coin lockoutunit in coin acceptor 30, not shown, is activated at various modes ofplay to prevent acceptance of a disk during that mode. However, if thedevice is in the'proper mode to accept a disk and if a proper disk isinserted, coin acceptor 30 discharges the disk into chute 46 whichpasses over the top of coin storage tube 34 and is in communication withthe coin storage tube. Disks passing downwardly through chute 46 entercoin storage tube 34 until it is full, then slide across the top of thefilled tube and into coin overflow tube 36, from which the disks aredischarged into a suitable receptacle, not shown, or into the bottom ofcabinet 10. The disk-handling equipment is supported within cabinet 10by a suitable bracket 48.

Disks are discharged from the bottom of coin storage tube 34 by means ofsolenoid operated payoff unit 50 that on command passes the disks one byone into coin return chute 40, through which they are discharged intocoin return tray 42.

Door 12 is constructed with an upper recessed vertical display panelupon which the progress and results of the game are displayed, aninclined control panel 62 located immediately below display panel 60,and a lower front panel 64 below which coin-return tray 42 is located.The display and control panels can be conveniently enclosed by the topand side members of the door which provide some privacy for the playerand tend to isolate the display and control panelsfrom adjacentmachines.

The progress of the game and its result is depicted on display panel 60.The embodiment illustrated in FIG. 4 include dealer card display uponwhich the dealers cards are indicated, and' player card display 72 uponwhich the players cards are indicated in a manner which will behereinafter more fully described; a gameover indicator 74a andwinner-paid indicator 74b; a disks-played indicator 76 includingseparate indicators 78a, 78b, 78c and 78d that indicate the number ofdisks played, and separate indicators 80a, 80b, 80c and 80d thatindicate the number of disks played in doubling the bet; a dealerdisplay section 82 that includes a dealers numerical total display 84,dealer blackjack indicator 86 and dealer bust indicator 88; a playerdisplay section v 90 that includes a players numerical total display 92,

player blackjack indicator 94 and player bust indicator 96; pushindicator 98 and legend 100 explaining the basis upon which pushes arepaid. 7

Dealer card display 70 and player card display 72 are each comprised offifty-two separate indicators which each represent one specific card ofa standard'card deck. In the play of this simulated game of blackjack,the dealer and the player each play with a separate simulated card deckcontaining 52 cards. In the dealer card display layout illustrated, arow of 13 separate inmt rs .1 n m zsrsd taw s 0 aQtK.

and A represent the heart suit; a row of 13 separate inand A i'epre sentthe spade suit; a row of thirteen separate indicators 106 numbered ZthrugltlO, inclusive,

elusive], O K and A represent the club suit; Four similar rows of 13separate indicators 110, 112, 114 and 116 in player card display 72represent cards of each suit in the simulated players deck.

Each of the card indicators in dealer card display 70 and player carddisplay 72, and the special condition indicators are each separatelyilluminated by lamps placed behind the indicators to vividly indicatethe play of a particular card or the existence of a particularcondition. These lamps and the attendant electrical circuitry arelocated in an enclosed box 66 in the upper section of door 12. WhileFIG. 4 illustrates one preferred arrangement, it is to be recognizedthat this arrangement may be modified and that other display panellayouts can be employed without materially altering the game describedherein.

As illustrated in FIG. 1, control panel 62 includes deal pushbutton 120,hit pushbutton 122, double pushbutton 124 and stand pushbutton 126 andprinted instructions describing the manner in which the game is played.The pushbuttons are separately illuminated to indicate to the playerwhich of the buttons he may select at various stages of the game todirect his play. Deal pushbutton 120 is illuminated by lamp 130, notshown, hit push-button 122 is illuminated by lamp 132, not shown, doublepushbutton 124 is illuminated by lamp 134, not shown, and standpushbutton 126 is illuminated by lamp 136, not shown. These lamps andthe attendant wiring are contained in box 68 mounted on the back ofcontrol panel 62.

As illustrated in FIGS. 5a and 5b, the solid state, fixed logic, digitalcomputer is comprised of the following components: disk counter 200,master reset 202, player mode control logic 204, dealer mode controllogic 206, random card generator 208, card selector 210, card Counter212, master counter 214, player card memory 216, dealer card memory 218,player card decoder 220, dealer card decoder 222, player register 224,player accumulator 226, player blackjack detector 228, player bustdetector 230, player adder-subtractor 232, dealer register 234, dealeraccumulator 236, dealer blackjack detector 238,'dealer bust detector240, dealer adder/subtractor 242, player-dealer comparator 244, payoffand end of game logic 246, disk-out counter 248 and dealer and playerace present logic 250. These logic components are constructed of solidstate, plug in, integrated circuits of the type conventionally employedin developing digital computer logic networks.

FIGS. 5a and 5b are block diagrams illustrating the logic flow of thecomputer and control systems. Prior to the start of play the carddisplay from the previous game and the special condition lamps resultingfrom theprevious play are lit, and the solenoid in the coin lockout unitis energized to permit coin acceptor 30 to accept disks. The first diskdepositedextinguishes the card display and special condition lamps, andenergizes master reset 202 to reset all memory units and clear thearithmetic and accumulator units. Also, indicator 78a in disks-playedindicator 76 is energized to display the numeral 1" and deal lamp 130 isenergized to light deal pushbutton 120. Deposit of additional disks incoin acceptor 30 successively energizes disks played indicators-78b, 78cand 78d to display the numerals 2, 3 and 4, respectively, to indicatethe number of disks played. Deal pushbutton 120 can be enabled at anypoint after deposit of the first disk. Deposit of the fourth disk orenabling deal pushbutton 120 deenergizes the solenoid in the coinlock-out unit to prevent additional disks from being accepted. Ifadditional disks are deposited,,they are returned to the player. Whilethe illustrated device is capable of accepting from one to four metallicdisks, by simple alteration the apparatus can be modified to accept morethan four disks, or to accept coins of various denominations, or toaccept coins of .other than United States currency.

Depressing deal pushbutton 120 also extinguishes deal lamp 130 andenables random generator 208 to cause eight cards to be randomlyselected from the dealer deck by card selector 210 and card counter 212.

Each card is stored in dealer card memory 218 in the order of selection.At the count of eight a dealer/player card select flip-flop in cardselector 210 changes state and eight cards are selected randomly fromthe player deck and stored in player card memory 216. At the count of16, random generator 208, card selector 210 and card counter 212 aredisabled and master counter 214 is enabled. Cards are dealt from thedealer and player memories one at a time. When the card is dealt, thecorresponding lamp in dealer card display 70 or player card display 72is lit'and the card value is added to dealer accumulator 236 or playeraccumulator 226,

respectively. This takes place for two cards for the player, both ofwhich are displayed, and two cards for the dealer, of which only thefirst is displayed. The second card dealt to the dealer is held indealer card memory 218 as the hole" card.

After the dealer and player have been dealt two cards each, both dealeraccumulator 236 and player accumulator 226 are checked by dealerblackjack detector 238 paid indicator 74b is lit. If 2] is sensed inboth dealer and player accumulators, push indicator 98, dealer blackjackindicator 86 and player black-jack indicator 94 are lit, master counter214 is reset and disabled, game over indicator74a is lit and a payoffequal to the amount of the initial bet is set and the computer goes intothe payoff cycle, at the conclusion of which winner paid indicator 74bis lit. If no 21 is sensed, hit pushbutton 122, double pushbutton l24and stand pushbutton 126 are enabled and lamps 132, 134 and. 136 are litto indicate that these pushbuttons are enabled.

If double pushbutton 124 is depressed, double lamp 134 will remai litand hit lamp 132 and stand lamp 136 will be extinguished. The coinlock-out unit in coin acceptor 30 is energized to permit additionaldisks to be accepted. The device will not start play until an amount ofdisks equal to the initial bet is deposited.- As the coins aredeposited, l Double.indicator 80a, 2 Double indicator 80b, "3 Doubleindicator 80c and 4 Double" indicator 80d in coins played indicator 76are successively lit until the necessary number of disks are deposited.When the initial bet is matched, one card is dealt from player cardmemory 216. The card is displayed on layer card display 72 and itsnumerical value is added to player accumulator 226 and the total pointcount displayed on player numerical total display 92. After scoring anddisplaying the card, the computer will automatically switch to theplayer stand condition. The dealer second card is displayed on dealercard display 70 and added to dealer numerical total display 84. Theplayer accumulator is checked for a bust condition by player bustdetector 230. If a bust is sensed, player bust indicator 96 and gameover indicator 74a are lit. If no bust issensed, cards are automaticallydealt to the dealer until a point total of 17 or greater is sensed bythe computer. Dealer accumulator 236 is 'checked for a bust condition.If a bust is sensed, dealer bust indicator 88 is lit, a payoff of, twotimes: the doubled best is set, the computer goes 'into the payoffcycle, and 'winher paid indicator 74b is lit. If no bust exists, dealeraccumulator 236 is checked for a push condition by player-dealercomparator 244. If a push is sensed, push in dicator 98 is lit,- mastercounter 214 is reset and disabled, and game over indicator 74a is lit.If no push is i counter 214 is reset and disabled, and game overindicator 74a is lit. lf the player score is greater than the dealerscore, a' payoff of two times the doubled bet is set, the computer goesinto the payoff cycle, and winner paid indicator 74b is lit.

If, after the initial deal, instead of depressing double pushbutton 124and doubling his bet, the player elects to depress hit pushbutton 122,hit lamp 132, double lamp l34and stand lamp 136 are extinguished toindicatethat hit pushbutton 122, double pushbutton 124 and standpushbutton 126 are disabled. One card-is 'accmulator 226, displayed onplayer card display 72 and the total score indicated on player numericaltotal display 92. Player accumulator 226 is checked for a bust conditionby player bust detector 230. If a bust is sensed, player bust indicator96 and game over indicator 74a are lit, and master counter 214 is resetand disabled. If a bust condition is not sensed, hit pushbutton 122 andstandpushbutton 126 are enabled, and the corresponding lamps are lit toindicate the enabled pushbuttons. The player may continue to play thehit pushbutton until a bust condition is sensed or the player elects tostand by depressing stand pushbutton 126.

. If stand pushbutton 126 is depressed, hit pushbutton 122, doublepushbutton 124 and stand pushbutton 126 are disabled and correspondinglamps 132, 134 and 136 are extinguished and the dealer hole card is displayed on dealer card display 70 and its numerical total added to dealernumerical total display 84. Cards are automatically dcalt'one at a timefrom dealer card memory 218 and displayed on dealer card display 70, andtheir point valueadded to dealer accumulator 236 and displayed on dealernumerical total display 84 until a total of 17 or greater is sensed inthe dealer accumulator. When the total reaches 17 or more, dealeraccumulator 236 is checked for a bust condition by dealer bust detector240. If a bust is sensed, dealer bust indicator 8-8 is lit,.a payoff oftwo times the bet is set, the computer goes into the payoff cycle, andat the conclusion of the payoff winner paid indicator 74b is lit. If nobust exists, dealer accumulator 236 is checked for a push byplayer-dealer comparator 244. If a push is sensed, push indicator 98 islit, master counter 214 is reset and disabled, and game over indicator.74a is lit. If no push is sensed, player accumulator 226 and dealeraccumulator 236 are compared by player-dealer comparator 244 and thewinner determined. If the dealer score is greater than the player score,master counter 21 4 is reset and disabled, and game over indicator 74ais lit. 1f the player score is greater than the dealer score, a payoffof two times the bet is set, and the computer goes into the payoffcycle. At the end of'payoff cycle, winner paid indicator 74b is lit andthe device is left with the cards'showing on the card display panels andSince an ace counts a point value of either 1 or 11, a special handlingmode for aces is provided. The first ace that is dealt to the player ordealer is assigned 9 point value of l l. The remaining aces that may bedealt in the same hand have a point count of 1. When the first ace isdealt, it is also stored in an ace memory section of dealer and playerace present logicunit 250 for use in case the player ordealer pointvalue is over 2 1 and the ace needs to have a point value of 1 ratherthan 11. 1f the player or dealer should have an ace with a count valueof 11 and the next card dealt puts the player or dealer count value over21, ace present unit 250 will automatically subtract from the countvalue, thereby attributing a point value of 1 to the ace and preventinga bust condition.

Random card-generator 208 simultaneously generates a series of separatesuit and card values identifying eight cards and stores these cards indealer card memory 218. After eight cards are selected, the output isswitched to player card memory 216 and a second series of suit and cardvalues are generated identifying an the appropriate special conditionindicators remain lit.

additional eight cards which are stored in the player card memory. Atthe count of 16, the random card generator is disabled. The dealer andplayer cards are selected independently. Each hand can contain any ofthe 52 cards, but a card once selected cannot be selected again in thathand during any one game. However, the same card can be selected in boththe dealer and player hands.

FIG. 6 schematically illustrates random generator 208', which iscomprised of low purity oscillator 260 having a frequency of 1 megahertzi 20 percent, low purity oscillator 262 having a frequency of 500kilohertzi 20 percent, and low purity oscillator 264 having a frequencyof 170 hertz i 20 percent. By low purity it is meant that the outputfrequency of each oscillator will independently drift during successiveshort samplirig periods. The outputs of oscillators 260 and 262 areconnected through gates 266 and 268, respectively, to counters 272 and274. Counter 272 counts to 13 and repeats, with each count representinga card value. Counter 274 counts .to 4 and repeats with each countrepresenting a suit. The output of oscillator 264 is passed throughthree stage counter 276 which reduces the frequency to approximately 21hertz. The most significant bit output signal from counter 276 enablesgates 266 and 268 andallows the oscillator outputs to pass to counters272 and 274 for half of each cycle. Duringeach enabled periodapproximately 22,000 i 4,400 pulses are passed to counter272 and 11,000i 2,200 pulses are passed to counter 274. Counters 272 and 274continuously count these input pulses during the enabled period. Duringalternate half cycles the output of gate 278 causes the counter to beread and the suit and card value transferred to the respective dealer orplayer card memory. Thus, each signal output from gate 278 will causeone signal representing a suit and one signal representing a card valueto be transferred to the dealer or player card memory. Card selection isenabled by latch flip-flop 280 which is activated by a deal signalgenerated by depressing deal pushbut ton 1 20 and is disabled at thecount of 16 cards trang ferred to memory.

Randomness in card selection is obtained by variability of the time inthe count cycle at which deal button 120 is depressed; by the variationsin the frequencies of the outputs of oscillators 260, 262 and 264; bythe fact -that the outputs of the high frequency lcocks are sampled at alow frequency, i.e., frequencies of nominally 1 megahertz and 500kilohertz are sampled at a frequency of about 21 hertz; and by the factthat a large number of pulses are counted by a repeating count to 4 orcount to 13 counter.

The power required for operation of the device is 5 volt d.c. for thecomputer components, approximately 6 volt a.c. for the disk-in anddisk-out counters, and approximately 6 volt d.c. for the indicatorlights, and volt a.c. for the payoff solenoid. A conventional powersupply unit capable of converting a 1 15 volt a.c. supply to arelatively constant 5 volt d.c., 6.3 volt a.c. and 6.3 volt d.c. outputis illustrated in FIG. 7. The 1 15 volt a.c. power supply is connectedacross the primary coil of constant voltage transformer 300, which isprovided with capacitive reactance compensation, Full wave rectifier 302is connected across the secondary winding of the transformer, and theground is connected to'the center tap of this winding. The rectifiedcurrent is filtered by capacitive input filter 304. Bleeder resistor 306provides 'a small d.c. current flow to stabilize the unit under no-loadconditions. Transformer 308 reduces the l 15 volt a.c. supply to a 6.3volt a.c. output, and diode 310 provides the unfiltered 6.3 volt d.c.output.

The timing sequences for the various play actions are summarized asfollows: WHEN THE FIRST DISK IS DEPOSITED: A. Master reset'is generatedand all registers, accumulato rs and displays from the previous game arereset.- B. Deal pushbutton 120 is enabled. 7 WHEN DEAL PUSHBUTTON ISDEPRESSED: A. Card selector 210 and random generator 208 are enabled. B.Eight cards are selected randomly from the dealer deck and stored indealer card memory 218. C. At the count of eight, flip-flop in cardselector 210 changes state and eight cards are selected randomly fromthe player deck and stored in player card memory D. At the count'of 16,card selector 210and random generator 208 are disabled and mastercounter 214 is enabled. I

E. Master counter 214 generates the following timing during thedeal'cycle:

T1 .Preset player and dealer adder-subtractors 232 and 242.

Fill player and dealer registers 224 and 234.

T2 .Sample for player or dealer ace.

T3 .Enable load 11 in player and dealer registers 224 and 234.

T4-T9 .Add player and dealer registers to zero and store in player anddealer accumulators 226 and 236.

T9-T1l .Update dealer card decoder 222.

T10 .Display player and dealer first card. Update player and dealeraccumulator display.

T11 .Preset dealer and player adder-subtractors 232 and 242.

Shift next cards out of player and dealer memories 216 and 218. j

T12 .Store dealer second card.

T13 .F ill player and dealer registers'224 and 234.

T14 .Sample for dealer and player ace.

T15 .Enable load 11 in player and dealer registers 224 and 234.

T16-T21 .Add player and dealer registers to accumulators 226 and 236 andstore in accumulators.

T21 .Display player second card. Update player accumulator display 92.

T22 .Sample for dealer and player blackjack.

Light dealer or player blackjack indicators 86'or 94, if present. I

If Blackjack is Present T23-.T25 .Update dealer card decoder 222. 'T24.Display dealer second card. Update dealer accumulator display 84.

T25 .Reset deal flip-flop.

T26 .If dealer blackjack, light game over indicator 74a, and reset anddisable master counter 214.

i If player blackjack, initiate payoff cycle and light winner paidindicator 74b. If No Blackjack is Present T27 .Reset deal flip-flop.Reset and disable master counter 21-4. Enable hit, stand and doublepushbuttons. 1

WHEN HIT PUSHBUTTON IS DEPRESSED:

A. Disable hit, stand and double pushbuttons.

B. Enable master counter 214 generating the following .Sh nsttssrsut ofP s; 11999?! 212-...

T2 .Fill player register 224..

T3 .Sample for player ace.

T4 .Enable load 11 in player register.

T5-Tl0 .Add player register to accumulator 226 and store in accumulator.

T10 .Display player card. Update player accumulator display 92.

T11 .Preset player and dealer adder-subtractors 232 and 242. Enableplayer subtract l0 circuitry.

T11-T17 .Generate player subtract 10'.

If Player Has An Ace and Greater Than 21 Count T12-T17 .Subtract playerregister 224 from accumulator 226 and store in accumulator.

If Player Has No Ace T12-T18 .Add player accumulator 226 to zero andstore in accumulator.

T17 .Reset player ace flip-flop.

T18 .Sample for player bust. If bust present, ligh player bust indicator96.

If Player Busts T19-T2l .Update dealer card decoder 222. T20 -.Displaydealer second card. Disable player subtract 10 circuitry. Update dealeraccumulator display 84.

T21 .Light gameover indicator 74a. Reset and disable master counter 214.

If Player Does Not Bust T22 .Enable hit and stand pushbuttons. Reset and'disable master counter 214.

WI-IEN STAND PUSHBUTTON IS DEPRESSED:

A. Disable hit and double pushbuttons.

B. Enable master counter 214 generating the following timing during thestand cycle;

T1 .Generate dealer hit enable.

T2-T4 .Update dealer card decoder 222.

.T3 .Display dealer second card. Update dealer accumulator display 84.

T26 .lf dealer cards total less than 17, set dealer hit flip-flop. Ifdealer cards total 17 or greater, set dealer stand flip-flop.

T27 .'.'.Reset less than 17 flip-flop.

T28 .Reset master counter 214 and go into dealer hit cycle or dealerstand cycle.

WHEN DOUBLE PUSHBUTTONIS DEPRESSED:

A. Disable hit and stand pushbuttons.

B. Enable coin acceptor 30.

C. Upon deposit of correct amount of disks, enable master counter 21'4generating the following timing during the double cycle:

T1 .Preset player and dealer'adder-subtractors 232 and 242. Set doubleflip-flop.

T2 .Shift card out of player card memory 216.

T3-T5 .Update player card decoder 220.

. T3 .Fill player register 224.

T4 .-Display dealer second card. Update dealer accumulator display 84.Sample for ace. T5 Enable load 11 in player register 224. T6-Tl1 .Addplayer register to accumulator 226 and store in accumulator.

T1 1 .Display player card. Update player accumulator display 226. Presetplayer adder-subtractor 232. Enable player subtract l circuitry.

T11-T17 .Generate player subtract 10.

If Player Has An Ace and Greater Than 2] Count T12-Tl7 .Subtract playerregister from accumulator 226 and store in accumulator.

If Player Has No Ace T12-Tl7 .Add player accumulator 226 to zero andstore in accumulator.

T17 .Reset player ace flip-flop.

T18 .Sample for player bust. If bustpresent, light player bust indicator96.

If Player Busts T19 .Light game over indicator 74a. Reset and disablemaster counter 214.

If Player Does Not Bust T20 .Generate dealer hitenable. Disable playersubtract l0 circuitry.

T26 .lf dealer cards total less than 17, set dealer hit flip-flop.

T28 .Reset double flip-flop. Reset master counter 214 and go into dealerhit cycle or dealer stand cycle.

DEALER HIT CYCLE:

T1 .Shift card out of dealer memory 218. Pre-set dealer adder-subtractor242.

T2 .Fill dealer register 234.

T3 .Sample for dealer ace.

T4 .Enable load 1 l in dealer register 234.

T5-Tl0 .Add dealer register to accumulator 236 and store in accumulator.

T11 .Preset dealer adder-subtractor 242. Enable dealer subtract 1Ocircuitry.

T11-Tl7 .Generate dealer subtract 10.

If Dealer Has An Ace and Greater Than 21 Count Tl2-Tl7 .Subtractdealer'register from accumulator 236 and store in accumulator.

lf Dealer Has No Ace T12-T17 .Add dealer accumulator 236 to zero andstore in accumulator.

T17-T19 .Update dealer card decoder 222.

T18 .Display dealer card. Update dealer accumulator display 84.

T19 .Reset dealer ace flip-flop.

T20 .Disable dealer subtract 1O circuitry. Sample for dealer bust.

If Dealer Busts Light dealer bust indicator 88, reset dealer hit cycleand generate payoff cycle. If Dealer Does Not Bust T21 .Generate dealerhit enable.

T22 .lf dealer cards total less than 17, set dealer hit flip-flop. lfdealer cards total 17 or greater, set dealer stand flip-flop.

T24 .Reset master counter 214 and stay in dealer hit cycle or go intodealer stand cycle.

DEALER STAND CYCLE:

' T1 .Generate player-dealer comparator 244 preset.

T2-T7 .Compare dealer and player accumulator count totals.

T7 .Sample for push:

a. If push exists, light push indicator 98, and game over indicator 74a.

b. If player total is greater than dealer total, go into payoff cycleand light winner paid indicator 74b.

T8 .lf dealer total is greater than player total, light game overindicator 74a and disable master counter 214.

To play a simulated game of blackjack with the device of this invention,a player deposits one to four disks in coin acceptor 30. Upon acceptanceof the first disk, all card and special condition indicators from theprevious game are reset and deal pushbutton is illuminated. Hitpushbutton 122, double pushbutton 124 and stand pushbutton 126 aredisabled at this time.

To start play, the player depresses deal pushbutton 120 which initiatesthe random selection of eight cards from the dealer deck and eight cardsfrom the player deck. These cards are stored respectively in dealer cardmemory 218 and player card memory 216. Upon com pletion of the cardselection and storage in the memory units, the master timing andarithmetic units are enabled and the card selector disabled. The mastertimer deals two cards each from the player and dealer memories. Both ofthe players'cards are displayed on player card display section 72 andtheir total numerical value is displayed in player numerical totaldisplay 92. One of the dealers two cards is not displayed, but is storedin a memory unit to check for a blackjack. I

Upon dealing these four cards, a search for a total of 21 is made. If 21is sensed in the player accumulator, but not in the dealer accumulator,player blackjack indicator 94 is lit and the device goes into a payoffcycle. If 21 is sensed in the dealer accumulator, but not in the playeraccumulator, the dealers second kard is displayed and dealer blackjackindicator. 86 and game over indicator 74a and lit and the device isready for 'the'next game. If both the dealer and player have 21,

push indicator 98, player blackjack indicator 94, and dealer blackjackindicator 86 are lit and a payoff equal to the amount of the bet is madeand winner paid indicator 74b lit. I

If neither the player nor the dealer has a blackjack, hit pushbutton122, double pushbutton 124 and stand pushbutton 126 are enabled andilluminated to indicate to the player that he has a choice of theseselections.

If double pushbutton 124 is depressed, double lamp 134 remains lit, andthe hit and stand buttons are disabled. The player must now depositdisks equal in num bet to those deposited in the initial bet. When theinitial bet is matched, one card is automatically dealt from the playermemory and displayed, the dealers hole card is displayed, and theplayers total point count is checked for a bust. If the player busts,player bust indicator 96 and game over indicator 74a are lit. The deviceis now ready for the next game.

If the player does not bust, the dealers total point count is checkedfor the numerical value of the two cards 1 f the value is 17 or greater,the computer compares the dealer and player numerical values. If thedealer total is greater than the player total, game over indicator 74ais lit and the device is ready for the next game. If the player total isgreater than the dealer total point count, a payoff of twice the bet isreturned. If the dea l e r t9tal is 16 or less, the computer willautomaticaTly deal another card from the dealer card memory. Thedealer's total point count is checked for a bust. If a bust is detected,the computer goes into the payoff cycle. If the dealer has 17 or greaterth e dgaler total 5561113 player total are compared and the was???termined. lfthe dealer still has a point count of l6or less, the dealerhit cycle is repeated until'the dealer busts or has a point count of 17or greater A If instead of selecting the double pushbutton, the

' player, elects to depress hit pushbutton 122, a card is dealt from theplayer memory and displayed. The players total point count ischecked fora bust. If a bust is detected, player bust indicator 96 and game overindicator 740 are lit. If no bust is detected, the hit button is enabledagain allowing the player a choice of hit or stand. The player may playthe hit pushbutton as many times as he wants until he busts or decidesto stand. When the player desires no more cards, i.e., he elects tostand, he depresses stand pushbutton 126. The dealers hole card isdisplayed and the computer goes through the dealer hit and dealer standcycles and the winner determined. 7

Thus, from a players standpoint, a simulated game of black-jack isplayed with the device of this invention by inserting the desired numberof disks into coin acceptor 30 and depressing the deal pushbutton. Whenthe dealers card and players cards and numerical point count aredisplayed, the player need only decide whether to double his bet andreceive one additional card, or to be hit with as many cards as he maydesire, or to stand. These plays are controlled by the players selectionof the double, hit and stand pushbuttons.

While various embodiments of the invention have been described, it willbe obvious to those skilled in the art that it is not so limited, but issusceptible of various changes and modifications, which are consideredwithin the spirit and scope of the invention as defined by the attachedclaims.

Having now described the invention, we claim:

1. A gaming device for playing a'simulated game of blackjack by a playeragainst a simulated dealer, which comprises:

a solid state, fixed logic, digital computer to automatically determinethe play of the game including (1) means to randomly generate card andsuit values representing simulatedcards, said means including means tosimultaneously generate first and second low purity,high frequencysignals, means to generate a'low purity, low frequency clock signal,first player control means electrically connected to said computer for aplayer to initiate the play of the game, to direct the dealing of anadditional card to the player, and to terminate: the dealing of additional cards to the player;

a display panel electrically connected to said computer to show theprogress of the game and the result;

disk-handling. equipment electrically connected to said computer forreceiving metallic disks deposited by the player and returning anappropriate number of disks to the player in the case of a player win;and a power supply to provide the power necessary for operation of thedevice.

2. The device defined in claim 1 wherein said computer includes a dealercard memory and a player card memory and also includes means to store afirst series of said randomly generated card'values representing dealerscards in said dealer card memory and to store a second series ofrandomly generated card values representing players cards in said playercard memory, said dealers cards being dealt from said dealer card memoryand said players cards being dealt from said player card memory.

3. The device defined in claim 2 wherein said computer also includesmeans to display both of the players cards dealt to the player and onlyone of the dealers cards dealt to the dealer, means to ascertain if theplayer or dealer has a point count totaling 21 means to determine ifafter the dealing of an additional card to the player and player pointcount exceeds 21, means to determine the dealer point count and whereinsaid means to simulate the dealing of additional cards to the dealerautomatically simulates the dealing of additional cards to the dealer solong as the dealers point count is less than 17, means to determine ifthe dealer point count exceeds 21, means to end the game in the case ofa dealer win or a push, and means to end the game and to return anappropriate number of disks in the case of a player win.

4. The device defined in claim 1 wherein said display panel includes adealer card display section for displaycounter means to repetitivelycount said first signals to a count of l3'during half of each cycle ofsaid low frequency clock signal to determine a random value from I to 13representative of a card value, second counter means to repetitivelycount said second signals to a count of 4 during each of said halfcycles to determine a random value from I to 4 representative of a suitvalue, and means to read said first and second counters during eachalternate half cycle of said clock signal, each combination of card andsuit values representing a different simulated card, (2) means tosimulate the dealing of two of said simulated cards to the player andtwo of said simulated cards to the dealer, (3) means responsive to aplayers control means to permit the player to initiate the play of thegame and to selectively control the dealing of additional cards to theplayer, (4) means to simulate the dealing of additional cards to thedealer until a prescribed total card valve count is equalled orexceeded, and means to determine the winner as be tween the player andthe dealer;

ing the simulated cards dealt to the dealer and a player card displaysection for displaying the simulated cards dealt to the player.

5. The device defined in claim 4 wherein said display panel alsoincludes a disks-played indicator, a dealer numerical total display, adealer blackjack indicator, a dealer bust indicator, a player numericaltotal display, a player blackjack indicator, a player bust indicator, apush indicator and a game over-winner paid indicator electricallyconnected to said computer to indicate respectively the occurrence ofthe various play modes.

6. The device defined in claim 1 wherein said control means includes adeal pushbutton to initiate play of the game, a hit pushbutton toinitiate the dealing of an additional card to the player on eachoperation of the pushbutton, and a stand pushbutton to terminate thedealing of additional cards to the player and to initiate the dealing ofsaid additional cards to the dealer.

7. The device defined in claim 6 wherein said control means includes adouble pushbutton operative only after the initial deal and wherein saidcomputer includes means to permit a player to double the number of disksinitially received by said disk handling equipment and to then receiveonly one additional card.

8. The device defined in claim 1 wherein said power 9. An electronicgaming device for playing a simulated game of blackjack by a playeragainst a simulated dealer, which comprises:

an enclosed cabinet for housing the operating components of the device;solid state, fixed logic digital computer including (1) meansto randomlyselect simulatedgardsfi); the player and for a simulated dealerincluding first and second low purity, high frequency oscillators, meansfor generating a low purity, low frequency clock signal, a repeatingcount to 13 counter, a repeating count to 4 counter, means to conductthe output of said first oscillator to said count to 13 counter and theoutput of said second oscillator to said count to 4 counter during halfof each cycle of said clock signal with each count of said count to 13counter determining a different respective card valueand each count ofsaid count to 4 counter determining a different respective card suit,means to read said count to 13 and said count to 4 counters during eachalternate half cycle of said clock signal, and means to enable saidcounters upon the receipt of a deal signal and to disable'said countersupon the production of sixteen card and suit values representing eightdealers cards and eight players cards, (2) means to simulate the deal oftwo of said randomly selected players cards to the player and two ofsaid randomly selected dealers cards to the dealer and to display bothof the players cards and only one of the dealers cards, (3) meanstgggcgr;

tain if the player or dealer has a point count totaling 21, (4) meansresponsive to a players control means to permit the player to initiateplay of the game and to selectively control the dealing of additionalcards to the player, (5) means to determine if the player total pointcount exceeds 21, means to automatically simulate the deal of cards tothe dealer so long as the dealer point count is less than 17, (7) meansto determine if the dealer total point count exceeds 21, (8 'means todeter- 'mine the winner as between the player and the dealer, and (9)means to end the game in the case of a dealer win or push, or to end thegame and return two times the number'of disks received by disk handlingequipment in the case of a player win; display panel electricallyconnected to said computer to show the progress of the game and itsresult; player control means electrically connected to said computer forthe player to initiate the start of play, to initiate the dealing of oneor more additional cards to the player and to terminate the dealing ofadditional cards to the player; disk-handling equipment electricallyconnected to said computer for receiving metallic disks deposited by theplayer and returning an appropriate number of disks to the player in thecase ofa player win, said equipment including a disk acceptor having asolenoid actuated disk lockout to permit acceptance of disksonly duringprescribed modes and disk payout means to return a prescribed number ofdisks to the player on command; and

a power supply to provide a source of constant voltage 5 volt d.c., 6volt ac, and 6 volt dc. power to operate the components of said device.

10. The device defined in claim 9 wherein said display panel includesdealer and player card display sections for displaying the simulatedcards respectively dealt to the dealer and the player, a disks-playedindicator, a dealer numerical total display, a dealer blackjackindicator, a dealer bust indicator, a player numerical total display, aplayer blackjack indicator, a player bust indicator, a push indicatorand a game overwinner paid indicator electrically connected to saidcomputer to indicate respectively the occurrence of the various playmodes.

11. The device defined in claim 9 wherein said player control meansincludes a control panel having a deal pushbutton to initiate play ofthe game, a hit pushbutton to initiate the dealing of an additional cardto the player on each operation of the pushbutton, and a standpushbutton to terminate the dealing of additional cards to the player.

12. The device defined in claim 11 wherein said control panel alsoincludes a double pushbutton operative only after the initial deal andwherein said computer includes means to permit a player to double thenumber of disks initially received by said disk handling equipment andto then receive only one additional card.

13. An electronic gaming device for playinga simulated game of blackjackby a player against a simulated dealer, which comprises;

an enclosed cabinet for housing the operating components of the device;

a solid state, fixed logic, digital computer including J (2 means torandomly select simulated cards for the player and for the simulateddealer including first and second low purity, high frequencyoscillators, means for generating a low purity, low frequency clocksignal, a repeating count to 13 counter, a repeating count to 4 counter,means to conduct the output of said firstfiillator to said count to 13counter and the output of said second oscillator to said count to 4 c9unt er during half 9f each cycle of said clock signal with each count ofsaid count to 13 counter determining a different respective card valueand each count of said count to l counter determining a differentrespective card suit, means to read said count to 13 and said count to 4counters during each alternate half cycle of said clock signal, eachcombination of card and suit values representing a different simulatedcard, and means to enable said counters upon the receipt of a dealsignal and to disable said counters upon the production of 16 card andsuit values representing eight dealers cards and eight players cards,

(2) means to simulate the deal of two of saidrandomly selected playerscards to the player and two of said randomly selected dealers cards tothe dealer and to display both of the players cards and only one of thedealers cards, (3) means to ascer- 15E if the pla yer or dealer has apoint count Eial i r g 2 l, (4 means responsive to a players controlmeans to permit thiiy'r to initiate play of the game and to selectivelycontrol the dealing of additional cards to the player, (5) means todetermine if the player total point count exceeds 21, (6) dreamfe'aatomaucan simulate the dealofc ards dealer, and (9) means to end thegame in case of a dealer win or push, or to end the game and return twotimes the number of disks deposited in the case of a player win;

' disk-handling equipment electrically connected to said computer forreceiving metallic disks and returning an appropriate number of disks tothe player in the case of a player win, and equipment including a diskacceptor having a solenoid actuated disk lockout to permit acceptance ofdisks only during prescribed modes, a disk storage tube, a disk returntube, a solenoid operated disk payout unit, and a disk return tray;

display panel located at the front of said cabinet and electricalyconnected to said computer, said display panel including dealer andplayer card display sections for displaying simulated cards respectivelydealt to the dealer and the player, disks played indicator, dealernumerical total display, dealer blackjack indicator, dealer bustindicator player numerical total display, player blackjack indicator,player bust indicator, a push indicator and a game over-winner paidindicator to indicate respectively the occurrence of the various modes;

a control panel located at the front of said cabinet and electricallyconnected to said computer, said control'panel including adealpushbuttonto initiate play of the game, a double pushbutton to permit the playerto double the number of disks deposited and to receive one more card, ahit pushbutton to initiate the dealing of an additional card to theplayer on each operation of the pushbutton, and a stand pushbutton toterminate, the dealing of addi' tional cards to the player; and

a power supply to provide a source of constant 5 volt d.c., 6 voltac.and 6 volt dc. power to provide the power necessary for operation of thedevice.

14. The device defined in claim 13 wherein said first oscillatordevelops an output signal having a frequency of about I megahertz i 20percent, said second oscillator develops an output signal having afrequency of about 500 kilohertz i 20 percent; and said means forgenerating a low frequency clock signal includes an oscillator-having anoutput frequency of about 170 hertz i 20 percent and a three'stagecounter to reduce said output-to a frequency of about 2]. hertz.

play,

1. A gaming device for playing a simulated game of blackjack by a playeragainst a simulated dealer, which comprises: a solid state, fixed logic,digital computer to automatically determine the play of the gameincluding (1) means to randomly generate card and suit valuesrepresenting simulated cards, said means including means tosimultaneously generate first and second low purity, high frequencysignals, means to generate a low purity, low frequency clock signal,first counter means to repetitively count said first signals to a countof 13 during half of each cycle of said low frequency clock signal todetermine a random value from 1 to 13 representative of a card value,second counter means to repetitively count said second signals to acount of 4 during each of said half cycles to determine a random valuefrom 1 to 4 representative of a suit value, and means to read said firstand second counters during each alternate half cycle of said clocksignal, each combination of card and suit values representing adifferent simulated card, (2) means to simulate the dealing of two ofsaid simulated cards to the player and two of said simulated cards tothe dealer, (3) means responsive to a player''s control means to permitthe player to initiate the play of the game and to selectively controlthe dealing of additional cards to the player, (4) means to simulate thedealing of additional cards to the dealer until a prescribed total cardvalve count is equalled or exceeded, and means to determine the winneras between the player and the dealer; player control means electricallyconnected to said computer for a player to initiate the play of thegame, to direct the dealing of an additional card to the player, and toterminate the dealing of additional cards to the player; a display panelelectrically connected to said computer to show the progress of the gameand the result; disk-handling equipment electrically connected to saidcomputer for receiving metallic disks deposited by the player andreturning an appropriate number of disks to the player in the case of aplayer win; and a power supply to provide the power necessary foroperation of the device.
 2. The device defined in claim 1 wherein saidcomputer includes a dealer card memory and a player card memory and alsoincludes means to store a first series of said randomly generated cardvalues representing dealer''s cards in said dealer card memory and tostore a second series of randomly generated card values representingplayer''s cards in said player card memory, said dealer''s cards beingdealt from said dealer card memory and said player''s cards being dealtfrom said player card memory.
 3. The device defined in claim 2 whereinsaid computer also includes means to display both of the player''s cardsdealt to the player and only one of the dealer''s cards dealt to thedealer, means to ascertain if the player or dealer has a point counttotaling 21, means to determine if after the dealing of an additionalcard to the player and player point count exceeds 21, means to determinethe dealer point count and wherein said means to simulate the dealing ofadditional cards to the dealer automatically simulates the dealing ofadditional cards to the dealer so long as the dealer''s point count isless than 17, means to determine if the dealer point count exceeds 21,means to end the game in the case of a dealer win or a push, and meansto end the game and to return an appropriate number of disks in the caseof a player win.
 4. The device defined in claim 1 wherein said displaypanel includes a dealer card display section for displaying thesimulated cards dealt to the dealer and a player card display sectionfor displaying the simulated cards dealt to the player.
 5. The devicedefined in claim 4 wherein said display panel also includes adisks-played indicator, a dealer numerical total display, a dealerblackjack indicator, a dealer bust indicator, a player numerical totaldisplay, a player blackjack indicator, a player bust indicator, a pushindicator and a game over-winner paid indicator electrically connectedto said computer to indicate respectively the occurrence of the variousplay modes.
 6. The device defined in claim 1 wherein said control meansincludes a deal pushbutton to initiate play of the game, a hitpushbutton to initiate the dealing of an additional card to the playeron each operation of the pushbutton, and a stand pushbutton to terminatethe dealing of additional cards to the player and to initiate thedealing of said additional cards to the dealer.
 7. The device defined inclaim 6 wherein said control means includes a double pushbuttonoperative only after the initial deal and wherein said computer includesmeans to permit a player to double the number of disks initiallyreceived by said disk handling equipment and to then receive only oneadditional card.
 8. The device defined in claim 1 wherein said powersupply includes means to convert 115 volt a.c. power to substantiallyconstant 5 volt d.c., approximately 6 volt a.c. and approximately 6 voltd.c. power to operate the components of the device.
 9. An electronicgaming device for playing a simulated game of blackjack by a playeragainst a simulated dealer, which comprises: an enclosed cabinet forhousing the operating components of the device; a solid state, fixedlogic digital computer including (1) means to randomly select simulatedcards for the player and for a simulated dealer including first andsecond low purity, high frequency oscillators, means for generating alow purity, low frequency clock signal, a repeating count to 13 counter,a repeating count to 4 counter, means to conduct the output of saidfirst oscillator to said count to 13 counter and the output of saidsecond oscillator to said count to 4 counter during half of each cycleof said clock signal with each count of said count to 13 counterdetermining a different respective card value and each count of saidcount to 4 counter determining a different respective card suit, meansto read said count to 13 and said count to 4 counters during eachalternate half cycle of said clock signal, and means to enable saidcounters upon the receipt of a deal signal and to disable said countersupon the production of sixteen card and suit values representing eightdealer''s cards and eight player''s cards, (2) means to simulate thedeal of two of said randomly selected player''s cards to the player andtwo of said randomly selected dealer''s cards to the dealer and todisplay both of the player''s cards and only one of the dealer''s cards,(3) means to ascertain if the player or dealer has a point counttotaling 21, (4) means responsive to a player''s control means to permitthe player to initiate play of the game and to selectively control thedealing of additional cards to the player, (5) means to determine if theplayer total point count exceeds 21, (6) means to automatically simulatethe deal of cards to the dealer so long as the dealer point count isless than 17, (7) means to determine if the dealer total point countexceeds 21, (8) means to determine the winner as between the player andthe dealer, and (9) means to end the game in the case of a dealer win orpush, or to end the game and return two times the number of disksreceived by disk handling equipment in the case of a player win; adisplay panel electrically connected to sAid computer to show theprogress of the game and its result; player control means electricallyconnected to said computer for the player to initiate the start of play,to initiate the dealing of one or more additional cards to the playerand to terminate the dealing of additional cards to the player;disk-handling equipment electrically connected to said computer forreceiving metallic disks deposited by the player and returning anappropriate number of disks to the player in the case of a player win,said equipment including a disk acceptor having a solenoid actuated disklockout to permit acceptance of disks only during prescribed modes anddisk payout means to return a prescribed number of disks to the playeron command; and a power supply to provide a source of constant voltage 5volt d.c., 6 volt a.c., and 6 volt d.c. power to operate the componentsof said device.
 10. The device defined in claim 9 wherein said displaypanel includes dealer and player card display sections for displayingthe simulated cards respectively dealt to the dealer and the player, adisks-played indicator, a dealer numerical total display, a dealerblackjack indicator, a dealer bust indicator, a player numerical totaldisplay, a player blackjack indicator, a player bust indicator, a pushindicator and a game over-winner paid indicator electrically connectedto said computer to indicate respectively the occurrence of the variousplay modes.
 11. The device defined in claim 9 wherein said playercontrol means includes a control panel having a deal pushbutton toinitiate play of the game, a hit pushbutton to initiate the dealing ofan additional card to the player on each operation of the pushbutton,and a stand pushbutton to terminate the dealing of additional cards tothe player.
 12. The device defined in claim 11 wherein said controlpanel also includes a double pushbutton operative only after the initialdeal and wherein said computer includes means to permit a player todouble the number of disks initially received by said disk handlingequipment and to then receive only one additional card.
 13. Anelectronic gaming device for playing a simulated game of blackjack by aplayer against a simulated dealer, which comprises; an enclosed cabinetfor housing the operating components of the device; a solid state, fixedlogic, digital computer including (1) means to randomly select simulatedcards for the player and for the simulated dealer including first andsecond low purity, high frequency oscillators, means for generating alow purity, low frequency clock signal, a repeating count to 13 counter,a repeating count to 4 counter, means to conduct the output of saidfirst oscillator to said count to 13 counter and the output of saidsecond oscillator to said count to 4 counter during half of each cycleof said clock signal with each count of said count to 13 counterdetermining a different respective card value and each count of saidcount to 4 counter determining a different respective card suit, meansto read said count to 13 and said count to 4 counters during eachalternate half cycle of said clock signal, each combination of card andsuit values representing a different simulated card, and means to enablesaid counters upon the receipt of a deal signal and to disable saidcounters upon the production of 16 card and suit values representingeight dealer''s cards and eight players cards, (2) means to simulate thedeal of two of said randomly selected player''s cards to the player andtwo of said randomly selected dealer''s cards to the dealer and todisplay both of the player''s cards and only one of the dealer''s cards,(3) means to ascertain if the player or dealer has a point counttotaling 21, (4) means responsive to a player''s control means to permitthe player to initiate play of the game and to selectively control thedealing of additional cards to the player, (5) means to determine if theplayer total point count exceeds 21, (6) means to automatically simulatethe deal of cards to the dealer so long as the dealer point count isless than 17, (7) means to determine if the dealer total point countexceeds 21, (8) means to determine the winner as between the player andthe dealer, and (9) means to end the game in case of a dealer win orpush, or to end the game and return two times the number of disksdeposited in the case of a player win; disk-handling equipmentelectrically connected to said computer for receiving metallic disks andreturning an appropriate number of disks to the player in the case of aplayer win, and equipment including a disk acceptor having a solenoidactuated disk lockout to permit acceptance of disks only duringprescribed modes, a disk storage tube, a disk return tube, a solenoidoperated disk payout unit, and a disk return tray; a display panellocated at the front of said cabinet and electricaly connected to saidcomputer, said display panel including dealer and player card displaysections for displaying simulated cards respectively dealt to the dealerand the player, disks played indicator, dealer numerical total display,dealer blackjack indicator, dealer bust indicator player numerical totaldisplay, player blackjack indicator, player bust indicator, a pushindicator and a game over-winner paid indicator to indicate respectivelythe occurrence of the various play modes; a control panel located at thefront of said cabinet and electrically connected to said computer, saidcontrol panel including a deal pushbutton to initiate play of the game,a double pushbutton to permit the player to double the number of disksdeposited and to receive one more card, a hit pushbutton to initiate thedealing of an additional card to the player on each operation of thepushbutton, and a stand pushbutton to terminate the dealing ofadditional cards to the player; and a power supply to provide a sourceof constant 5 volt d.c., 6 volt a.c. and 6 volt d.c. power to providethe power necessary for operation of the device.
 14. The device definedin claim 13 wherein said first oscillator develops an output signalhaving a frequency of about 1 megahertz + or - 20 percent, said secondoscillator develops an output signal having a frequency of about 500kilohertz + or - 20 percent; and said means for generating a lowfrequency clock signal includes an oscillator having an output frequencyof about 170 hertz + or - 20 percent and a three-stage counter to reducesaid output to a frequency of about 21 hertz.